Open AccessEffect of Different Parameters on Solar Pond Performance
Author(s) -
Seyed Saeed Madani
Publication year - 2014
Publication title -
asia pacific journal of energy and environment
Language(s) - English
Resource type - Journals
eISSN - 2312-282X
pISSN - 2312-2005
DOI - 10.18034/apjee.v1i1.211
Subject(s) - solar pond , convection , convection zone , environmental science , thermal , maximum temperature , constant (computer programming) , convective heat transfer , meteorology , atmospheric sciences , materials science , geology , solar energy , engineering , computer science , geography , electrical engineering , programming language
By applying a model of finite differences, the thermal behavior of a large solar pond is studied in this paper. The 32-year data of sunny hour’s today-length ratio are used for the estimation of global radiation. The temperature data of a similar duration are used for evaluating the ambient temperature. The effects of the variation of different zone thicknesses on pond performance are studied. It is observed that the upper convective zone thickness should be as thin as possible, the non-convective zone might be from 1 to 2 m and the lower convective zone thickness may be designed based on the application needs. A thicker non convective zone provides more insulation against heat losses, and a thicker lower convective one supplies a higher storage capacity, though with a lower operating temperature. The heat may be extracted from the pond by either a constant or a variable loading pattern. The appropriate loading pattern can be selected based on the needs and operational temperature. The LCZ temperature of the pond, under several heat extraction patterns, is also presented for practical applications.